Small-scale map of June 27th flow in Kīlauea's ERZ

Small-scale map of June 27th flow in Kīlauea's East Rift Zone...

Detailed Description

This small-scale map shows Kīlauea's active East Rift Zone lava flow in relation to lower Puna. The area of the flow on December 19 at 8:30 AM is shown in pink, while widening and advancement of the flow as mapped on December 22 at 3:00 PM is shown in red. A relatively narrow lobe of lava continues to advance downslope toward the Pāhoa Marketplace. The tip of the flow was about 675 meters (738 yards) from the upslope edge of the Pāhoa Marketplace, as measured along a straight line path. Several other breakouts were active farther upslope between 2 and 3 kilometers (1.2-1.9 miles) along the narrow lobe, as well as 8 kilometers (5 miles) along the north side of the crack system. The blue lines show steepest-descent paths calculated from a 1983 digital elevation model (DEM; for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. All older Pu‘u ‘Ō‘ō lava flows (1983-2014) are shown in gray; the yellow line marks the active lava tube.

Details

Image Dimensions: 3300 x 2550

Date Taken: